A person has to cover 360 km distance. If he increases his speed by 10 km/h he reaches 3 hours early. Find his initial speed.
A train covers a certain distance in 210 minute at a speed of 60 kmph the time taken by the train, to cover the same distance at a speed of 80 kmph is—
Walking at the rate of 4 kmph a man covers certain distance in 2 hrs 45 min. Running at a speed of 16.5 kmph the man will cover the same distance in how many minutes ?
Peter can cover a certain distance in 1 hr.24 min by covering two third of the distance at 4 kmph and the rest at 5 kmph.Find the total distance.